niban (puka 0507), shiun sumika, gakuen idolmaster, idolmaster, commentary request, highres, 1girl, :o, arm under breasts, blush, bra, breasts, cleavage, collarbone, green eyes, hair ornament, hairclip, hand up, large breasts, long hair, long sleeves, looking at viewer, navel, open clothes, open shirt, orange hair, panties, panty peek, parallel hairclips, parted lips, raised inner eyebrows, shirt, simple background, sleeves rolled up, solo, stomach, straight hair, sweat, underwear, upper body, white background, white bra, white panties, white shirt